<template>
    <div>
        <!--面包屑导航区-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>活动管理</el-breadcrumb-item>
            <el-breadcrumb-item>活动列表</el-breadcrumb-item>
            <el-breadcrumb-item>活动详情</el-breadcrumb-item>
        </el-breadcrumb>

        <!--卡片视图区域-->
        <el-card class="box-card">
            <!-- 搜索与添加与区域-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容"
                              v-model="queryInfo.query"
                              clearable
                              @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">
                        添加用户
                    </el-button>
                </el-col>
            </el-row>

            <!--用户列表区域-->
            <el-table :data="userList" border stripe>
                <!--添加索引列-->
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" prop="mg_state">
                    <!-- 取到某一列的值({{scope.row}})--作用域插槽，接收scope然后得到scope中的row-->
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <!--操作，按钮不是圆的，可以设置宽度为170px-->
                <el-table-column label="操作">

                    <template v-slot="scope">
                        <el-row>

                            <!-- 修改按钮-->
                            <el-button
                                    type="primary"
                                    icon="el-icon-edit"
                                    size="mini"
                                    circle
                                    @click="showEditDialog(scope.row.id)">

                            </el-button>

                            <!-- 删除按钮-->
                            <el-button
                                    type="danger"
                                    icon="el-icon-delete"
                                    size="mini" circle
                                    @click="removeUserById(scope.row.id)"></el-button>
                            <!--布尔值需要进行数据绑定,Expected Boolean, got String with value "false"-->
                            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                                <!--分配角色按钮-->
                                <el-button type="warning" icon="el-icon-s-tools" size="mini" circle></el-button>
                            </el-tooltip>
                        </el-row>
                    </template>
                </el-table-column>
            </el-table>

            <!--分页区域-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[1, 2, 5, 10]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户的对话框-->
        <el-dialog
                title="添加用户"
                :visible.sync="addDialogVisible"
                width="50%"
                @close="addDialogClosed">
            <!--内容主体区域-->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!--底部区域-->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

        <!--修改用户对话框-->
        <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="50%"
                @close="editDialogClosed">
            <el-form
                    :model="editForm"
                    :rules="editFormRules"
                    ref="editFormRef"
                    label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        name: "Users",
        data() {
            //验证邮箱的规则
            /*var checkEmail = (rule, value, callback) => {

            }*/
            var checkEmail = (rule, value, callback) => {

                //验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

                if (regEmail.test(value)) {
                    //合法的邮箱
                    return callback()
                }

                callback(new Error('请输入合法的邮箱'))
            }

            //验证手机的规则
            var checkMobile = (rule, value, callback) => {

                //验证邮箱的正则表达式
                const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

                if (regMobile.test(value)) {
                    //合法的邮箱
                    return callback()
                }

                callback(new Error('请输入合法的手机号'))
            }

            return {
                //获取用户列表的参数对象
                queryInfo: {
                    query: '',
                    //当前的页数
                    pagenum: 1,
                    //当前每页显示多少条数据
                    pagesize: 2
                },
                userList: [],
                total: 0,

                //控制添加用户对话框的显示与隐藏
                addDialogVisible: false,
                //控制修改用户对话框的显示与隐藏
                editDialogVisible: false,
                //查询到的用户的信息对象
                editForm: {},

                //修改表单的验证规则对象
                editFormRules: {
                    email: [
                        {required: true, message: '请输入邮箱', trigger: 'blur'},
                        {validator: checkEmail, trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机', trigger: 'blur'},
                        {validator: checkMobile, trigger: 'blur'}
                    ]
                },

                //添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                //添加表单的验证规则对象
                addFormRules: {
                    username: [
                        {required: true, message: '请输入用户名', trigger: 'blur'},
                        {min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
                    ],
                    password: [
                        {required: true, message: '请输入密码', trigger: 'blur'},
                        {min: 3, max: 10, message: '长度在 6 到 15 个字符', trigger: 'blur'}
                    ],
                    email: [
                        {required: true, message: '请输入邮箱', trigger: 'blur'},
                        {validator: checkEmail, trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机', trigger: 'blur'},
                        {validator: checkMobile, trigger: 'blur'}
                    ]
                }
            }
        },
        created() {
            this.getUserList();
        },
        methods: {
            async getUserList() {
                const {data: res} = await this.$http.get('users', {
                    params: this.queryInfo
                });
                //console.log(res);
                if (res.meta.status !== 200) {
                    return this.$message.error('获取用户列表失败');
                } else {
                    this.userList = res.data.users;
                    this.total = res.data.total;
                }

            },

            //监听pageSize改变的事件
            handleSizeChange(newSize) {
                console.log(newSize);
                this.queryInfo.pagesize = newSize;
                //数据放生变化（之前的pagesize的值被重写了，需要重新请求数据得到新的值）
                this.getUserList();
            },
            //监听 页码值 改变的事件
            handleCurrentChange(newPage) {
                console.log(newPage);
                this.queryInfo.pagenum = newPage;
                this.getUserList();
            },
            //监听 switch 开关状态的改变
            async userStateChanged(userInfo) {
                console.log(userInfo);
                const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
                if (res.meta.status !== 200) {
                    userInfo.mg_state = !userInfo.mg_state;
                    return this.$message.error('更新用户状态失败！');
                }
                this.$message.success('更新用户状态成功！');
            },
            //监听添加用户对话框的关闭事件
            addDialogClosed() {
                this.$refs.addFormRef.resetFields();
            },
            //点击按钮，添加新用户
            addUser() {
                //简化promise在箭头函数前面加
                this.$refs.addFormRef.validate(async valid => {
                    console.log(valid);
                    if (!valid) return;
                    //可以发起添加用户的网络请求（返回一个promise）
                    const {data: res} = await this.$http.post('users', this.addForm)

                    if (res.meta.status !== 201) {
                        this.$message.error('添加用户失败！');
                    }
                    this.$message.success('添加用户成功！');
                    //隐藏添加用户的对话框
                    this.addDialogVisible = false;
                    //重新获取用户列表数据
                    this.getUserList();
                });
            },
            //展示编辑用户的对话框
            async showEditDialog(id) {
                // console.log(id);
                const {data: res} = await this.$http.get('users/' + id);
                if (res.meta.status !== 200) {
                    return this.$message.error('查询用户信息失败！');
                }
                //将请求到的数据赋给本地对象
                this.editForm = res.data;
                this.editDialogVisible = true;

            },

            //监听修改用户对话框d的关闭事件
            editDialogClosed() {
                //console.log("ok?");
                //关闭时清空表单内容
                this.$refs.editFormRef.resetFields();
            },
            //修改用户信息并提交
            editUserInfo() {
                //验证输入内容是否合法
                this.$refs.editFormRef.validate(async valid => {
                    //合格返回true，不合格返回false
                    console.log(valid);
                    //不合格就不提交
                    if (!valid) return;
                    //合格，则发起修改用户信息的数据请求,【修改的数据从editForm中取值】
                    const {data: res} = await this.$http.put(
                        'users/' + this.editForm.id,
                        {
                            email: this.editForm.email,
                            mobile: this.editForm.mobile
                        }
                    );

                    if (res.meta.status !== 200) {
                        return this.$message.error('更新用户信息失败!');
                    }

                    //关闭对话框
                    this.editDialogVisible = false;
                    //刷新数据列表
                    this.getUserList();
                    //提示修改成功
                    this.$message.success('更新用户信息成功！');
                });
            },
            //根据Id删除对应的用户信息
            async removeUserById(id) {
                //如果一个函数的返回值是Promise {<pending>}对象，可以使用async+await形式进行改造
                //console.log(id);
                //弹框询问用户是否删除数据
                /*this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    this.$message({
                        type: 'success',
                        message: '删除成功!'
                    });
                }).catch(() => {
                    this.$message({
                        type: 'info',
                        message: '已取消删除'
                    });
                });*/
                const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(error => error);
                //报错：Error in v-on handler (Promise/async): "cancel"
                /*.catch(error => {
                    return error;
                });
                //简写
                catch(error => error)*/


                //如果用户确认删除，则返回值为字符串 confirm
                //如果用户取消了删除，则返回值为字符窜 cancel
                //console.log(confirmResult);
                if (confirmResult !== 'confirm') {
                    return this.$message.info('已取消删除')
                }

                console.log('确认了删除！');
                const {data: res} = await this.$http.delete('users/' + id);

                if (res.meta.status !== 200) {
                    return this.$message.error('删除用户失败！');
                }

                this.$message.success('删除用户成功！');
                //刷新页面数据
                this.getUserList();
            }
        }
    }
</script>

<style scoped>

</style>
